Never ever take it along regarding any nitrate-based medicines recommended for chest discomfort and inform your medical professional if you are taking blood, erythromycin or heart pressure medications, diclofenac, seizure medications, doxazosin, tadalafil 100mg tabletsimatinib, ketoconazole, itraconazole, dalfopristin, antidepressants, telithromycin, HIV/AIDS medications, conivaptan, clotrimazole, clarithromycin, isoniazid, rifampin, or voriconazole.